Because you're in-state, I'd suggest applying ED if you really really want to go there. You're a bit of a long-shot, but if they happen to like the rest of your application they may take you to fill their in-state quota. I've heard of in-state people below both medians getting into UVA before. Unlike the out-of-state pool, it's not completely unheard of.

Retaking and getting a 170+ would greatly increase your odds, especially if you applied ED after you got the 170+ score. That'd be your best chance of admission.